Melting-furnace.



l G. A. MENENDEZ.

MELTING IUBNAOE. APPLICATION FILED FEB. 25, 1907.

- Patente a Da. 29, 190s.

2 SHEETS-SHEET 1.

UNITED sTATEsPATE fr oFFicn.

vGABRIEL A. MENENDEZ, OF CHICAGO, ILLINOIS, ASSIGNOR T0 GOSS PRINTING PRESS COM- lPANY, OF CHICAGO, ILLINOIS, A CORPORATIONy OF ILLINOIS. y

MELTINGHFURNACE;

. speciaacioa oi Leiten Patent. l

-rammed nec. 29, isos.

Appiicaiion mea February 25,1907. sei-iai nofsisaieo. l

To all whom it may concem Be it known that I, GABRIEL A. MENENf DEZ, a citizen of the United States, residing at Chicago, in the countyof Cook and State of Illinois, have invented certainnew and` useful Improvements in MeltinhgEurnaces, of which t efollowing is a speci cation, reference being had to the accompanying drawtly invention relates to melting furnaces,

such asl areused in melting stereotype metal,

and has articularly to do with the construction of t e melting pot and with the mechanism for withdrawing the molten metal from the furnace. Y

It has for its `object to provide a new and improved meltin ot, and also certain improvements by w ich the molten metal may e 4more conveniently withdrawn from the melting pot and delivered to stereotype castis a side view of my improved furnace, showing part of the pumpin mechanism; Fig. 2

is an enlar ed sectiona view of the upper portion of t e furnace, showing the meltingpot and Fpump Fig. 3 is a section'on line 3--3 of g. is a section ofthe pump on line 5-5 of ig.

4; Fig. 6 is an end elevation ofthe upperportion of the furnace and pump; Fig. 7 is a erspective view of the u per portion .of the `urnace, showing one of t e pairs of stops'by which the pum is secured at different points around the me ting-pot; and Fi 8 is a perspective view of t e latch whic coperates with saidpstops. if

Referring tothe `drawing`s,10 indicates the furnace, in the lower portion of which is a suitable fire-box, as indicated by the doors 1 1 12 indicates the melting-pot,V mounted at the top of the furnace, and which, as shown` in Fig. 2., is in the form of an inverted'cone, the sides tapering or elogi-pgl toward the center of the melting-pot w 'e forms the apex ofthe cone'. -The advantage .of making the 'rality of 2; Fig. 4 is a plan view; Fi 5' melting-pot conical in form is that the danger of 'its being cracked by reason of the fact that the type metal does not materially contract in cooling while the cast-iron, or other material, o'f which the meltin -pot is made, does so contract, is minimize since, owing to the form of meltin -pot, the contraction-- of the metal of which it is made tends to lift or force up the type metal in it, thus leaving the pot free to contract without lamagc.

13 indicates a `retaining device, in the form of a lug, which is secured at the bottom of the fire-box, projecting up thereinto, as

shown in Fig. 2, and being preferably cast integral with the meltin ot.

14 indicates a margina ange at the upper end of the furnacesurrounding the meltingpot, as shown in Figs. 1 and 2.. Said fiange may be .termed the rim of v,the meltingpot.v At suitable intervals it carries a luairs of sto s 15,- which are est shown in ig. 7. Eac pair of stops is composed of blocks set a distance apart to form notches or recesses 16,--the faces of said blocks `farthest from said recesses being inclined, as shown in Fig. 7. The recesses 16 are designed to receive a latch 16UL carried by the ump, as will be hereinafter described, to hol the ump at diHerent points around the-rim of t e furnace.- Any desired number of stops may be provided, but usually four will suflice, and in that case they are preferably placed 90 apart.

17 indicates a pump mounted in the melting-pot, as shown in Figs. 2l and 4. Said pump, as shown in Fig. 5, comprises a pump cylinder 18, a piston-rod or plunger-rod 19, a piston'20 at the lower end of said rod and operating in said cylinder, an outlet passage 21 `communicating withy the upper end of said cylinder and 'extending to and connect ingwith a discharge nozzle or lip 22, together with suitable .o erating mechanism, as will be hereinafter ascribed. The pump is de-- signed to be. placed inthe melting-pot in an inclined position, its lower end being secured to -tle lug -13 b means of anotched lu 23l which projects romthe lower ortion o the cylinder 18`into ositionto ein racetlielug 13,- as shown in ig. 2, and as shown more clearly in Fig. 3,-said lug havin claws 2425 between which the ug 13 ts, the head of said lug lying over said claws, as shown in Figs. 2 and 3. The arrangement is such that by turning the pump 17 to approximately a vertical position the lug 23 may be disengaged from the lug 13, but when the ump is in operative position, as shown in lgig. 2, the lug 23 cannot become disengaged from said lug 13. I thus provide a connection between the pump and the furnace which permits the pump to be swung around in the melting-pot so as to discharge in any desired direction, but which nevertheless permits of its being readily removed, as there are no bolts or other attaching devices to be removed inorder to permit of the detachment of the pump from the furnace.

The upper portion of the pump is supported from the rim of the furnace by means of a truck or wheeled support 26, best shown in Figs. 4 and 6, the wheels 27 thereof being set in the are of a circle of the proper diameter so that they travel properly upon the rim 14, as shown in Fig. 4. The assage 21. extends up over the truck 26, the ip or nozzle 22 discharging lzeyond the side of the furnace, as shown in Figs. 2 and 4. The piston-rod 19 is reciprocated by means of a bell-crank lever 28 pivoted at 29 on the truck 26, or other suitable support, so that one'arm extends upward, the other arm 2Sa extending more or less nearly horizontally and being connected by means of a connecting-rod 30 to the piston-rod 19 between its ends. By this arrangement, by rocking the bell-crank lever 28, the piston-rod may be reciprocated to reciprocate the piston or plunger 20 in the cylinder. The various parts are so correlated that when the piston-rod 19 is at the lower end of its stroke the piston 20 lies outside of and below the pump cylinder 18, as shown in Fig. 2, thereby permitting the molten metal in the melting-pot to enter the cylinder above said piston. When the piston-rod is moved outwardly, the iston 2() enters the cylinder below the meta therein, carrying the metal up and forcing it out through the passage 21. It Will be understood, of course, that the cylinder 18 and passage 21 are so proportioned that the stroke of the piston 20 is sufficient to discharge the greater portion of the metal contained in the pump at each full stroke of the piston.

31 indicates a guide for the upper end of the piston-rod 19.

.As best shown in Fi". 6, the latch 16a is plvotally connected wit the truck 26 in such position that its downwardly-turned outer end is adapted to fit in the various recesses 16 aroun the rim of the furnace. Said latch, therefore, operates to hold the pump 1n position when moved to different oints around the furnace. By making the locks l'inclined, as described, the latch 16a rides upon them as Vvthe pump is swung around and drops by gravity into the recess 16.

My inventionin its broader aspect is not restricted to making the meltmg pot or bowl of the furnace truly conical in form as it may l be of other shape than circular in horizontal section, in which case instead of the lug 13 other suitable means will be provided for accommodating the movement of the pump.

While I have described in detail the embodiment of my invention illustrated in the accompanying drawings, I wish it to be understood that my invention is generic in character and that the claims hereinafter made are to be broadly construed, except in so far as they are directed to details of construction.

'lhat which I claim as my invention, and desire to secure by Letters latent, is,-

1. A melting furnace, comprising a melting-pot, and means in said melting-pot and pivotally connected with the bottom thereof lor discharging its contents.

2. A melting furnace, comprising a firebox, and a melting-pot, said melting-pot having its sides inclined downwardly and inwardly, and means in the melting-pot and movable to different situations therein for discharging the contents thereof at different places around the furnace.

3. Ameltingfurnace, com risingare-box, and a melting-pot, said me tingot having its sides inclined downwardly an inwardly, means in the melting-pot and movable to diHerent situations therein for discharging the contents thereof at different laces around the furnace, and means detac iably lconnecting said delivering means with the melting-pot.

4. A melting furnace, comprising a melting-pot having its sides inclined downwardly and inwardly, and a pump mounted in said meltingot in an inclmed position and movable to iflerent situations therein.

5. A melting furnace, comprising a melting-pot having its sides inclined downwardly and inwardly, and a pump ,detachably secured in said melting-pot in an inclined position and movable to different situations therein.

6. A melting furnace, comprising a melting-pot, and a pump mounted in and supported by said melting-pot, said pump being movable so as to discharge at different points around the furnace.

7. A melting furnace, comprising a melting-pot, aipump in said melting-pot, said u ably secured at the ottom o said melting- `pot Aand arranged to discharge over the rim of the melting-pot, -and a Wheeled support running on the rim of the melting-pot andv -to move the piston out below the lower end v A3. A meltingfurnace vprovided with a supporting the u per portion ,of the pump.

10. Amelting urnace,comprising acomcal meltingpot, a pump pivotally secured at the bottom of said melting-pct and arranged to discharge over the rim of the melting-pot, a Wheeled support running on the rim of thev melting-pot and sup orting the upper portion of the pump, an means' for securing the `pump at different points around the furnace.

11,'A melting-furnace having a meltingpot and means mounted in and supported by said melting-pot for discharging the contents thereof, said discharging means'being movable so as to discharge at different points around thel melting-pot.

12.y A melting furnace, com

rising a melting-pot, a pump in said `me -ting-pot, lsaidpump comprising a cylinder open at itslower the upper end of said cylinder, a piston adapte to be reciprocated in said cylinder, a piston-rodv connected with said piston, and means for reciprocating vsaid piston-rod so as of the cylinder and up into said cylinder.

melting pot having sides converglngftow'ard the bottom ofthe melting pot and means adjustably mounted in the melting-pot for discharging the contents thereof .at dilererit points around its margin.

I 14. A melting furnace yprovided with a' meltingpot having sides converging toward the bottom of the melting pot, and means in said meltingpot and pivotally connected lwith the bottom thereof for delivering the contents thereof.y

, GABRIEL A. MENENDEZ. Witnesses: v

JOHN L. JACKSON,

WILLIAM H.DE BUsx.

end, a discharge passage communicating with A 25 

